AP BIOLOGY

Detailed explanation-1: -Benign tumors are those that stay in their primary location without invading other sites of the body. They do not spread to local structures or to distant parts of the body. Benign tumors tend to grow slowly and have distinct borders. Benign tumors are not usually problematic.

Detailed explanation-2: -A benign tumor is an abnormal but noncancerous collection of cells. It can form anywhere on or in your body when cells multiply more than they should or don’t die when they should. A benign tumor is not malignant. It grows more slowly, has even borders and doesn’t spread to other parts of your body.

Detailed explanation-3: -In fact, many growths throughout the body are benign. Benign growths are extremely common, and more than 90 percent of breast tissue changes are benign. Benign bone tumors, similarly, have a higher prevalence than malignant bone tumors.

Detailed explanation-4: -Nonmalignant tumors may grow larger but do not spread to other parts of the body. Also called benign.

Detailed explanation-5: -Benign (non-cancerous) brain tumours can usually be successfully removed with surgery and do not usually grow back. It often depends on whether the surgeon is able to safely remove all of the tumour. If there’s some left, it can either be monitored with scans or treated with radiotherapy.